QVE THE FVCK

main.cpp

#include <cstdlib>
#include "prettyprinter.hpp"

int main()
{
  using namespace std;

  PPrinter printer1 = PPrinter::ostream<2, 16>();
  PPrinter printer2 = PPrinter::ostream<2, 16>();

  printf("printer1.buf_ptr = %u\n", printer1.get_buf_ptr());
  printf("printer2.buf_ptr = %u\n", printer2.get_buf_ptr());

  return 0;
}

/* output:
printer1.buf_ptr = 4227264
printer2.buf_ptr = 4227328
*/

prettyprinter.hpp

#ifndef PRETTYPRINTER
#define PRETTYPRINTER

#include <cstdlib>
#define PPrinter    PrettyPrinter<__LINE__>

template <int printer_id>
class PrettyPrinter {
  int width;
  int height;
  char *buf_ptr;
public:
  PrettyPrinter(PrettyPrinter const &other)
    : width{ other.width }
    , height{ other.height }
    , buf_ptr{ other.buf_ptr }
  {
  }
  ~PrettyPrinter()
  {
  }
private:
  PrettyPrinter(int _width, int _height, char *_buf_ptr)
    : width{ _width }
    , height{ _height }
    , buf_ptr{ _buf_ptr }
  {
  }
public:
  char *get_buf_ptr() const
  {
    return buf_ptr;
  }
  template <size_t NumberOfRows, size_t NumberOfCols>
  static constexpr
  PrettyPrinter ostream()
  {
    static char buf[NumberOfRows][NumberOfCols + 1] = { };
    return { ._width = static_cast<int>(NumberOfCols), ._height = static_cast<int>(NumberOfRows), ._buf_ptr = static_cast<char *>(&buf[0][0]) };
  }
};

#endif